The term “great aunt” generally refers to female menstruation. Generally speaking, girls start menstruating at the age of 13 to 14, but due to individual differences, some girls may start menstruating as early as around 11 years old or as late as around 16 years old.
The onset of menstruation is a sign of maturation of all female signs. During this period, the endocrine system, genitals and body will gradually develop into a mature stage, and the female secondary sexual characteristics will gradually develop, including breast development, pubic hair, and armpit hair, etc. The onset of menstruation is also a sign of maturity.
The onset of menstruation also signifies the gradual maturation of the ovaries and uterus, as well as the maturation of the hypothalamic-pituitary-ovarian axis. However, due to the changes in the environment and the improvement of living standards, it is normal for menstruation to occur between the ages of 11 and 16.
However, if a girl over the age of 16 still does not have menstruation, she should go to the hospital in time, complete the relevant examinations, and follow the doctor’s instructions to make a clear diagnosis and active treatment.